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Smith CH, Barker JN, Hay RJ.Smith CH, et al. Among authors: hay rj.Br J Dermatol. 1993 Apr;128(4):436-9. doi: 10.1111/j.1365-2133.1993.tb00205.x.Br J Dermatol. 1993.PMID: 8388236
McGregor JM, Hamilton AJ, Hay RJ.McGregor JM, et al. Among authors: hay rj.Br J Dermatol. 1992 Sep;127(3):233-8. doi: 10.1111/j.1365-2133.1992.tb00120.x.Br J Dermatol. 1992.PMID: 1390167
Groves RW, Newton JA, Hay RJ.Groves RW, et al. Among authors: hay rj.Clin Exp Dermatol. 1991 Jul;16(4):300-2. doi: 10.1111/j.1365-2230.1991.tb00382.x.Clin Exp Dermatol. 1991.PMID: 1794177
Hay RJ, Clayton YM, Moore MK, Midgely G.Hay RJ, et al.J Am Acad Dermatol. 1990 Sep;23(3 Pt 2):561-4. doi: 10.1016/0190-9622(90)70255-g.J Am Acad Dermatol. 1990.PMID: 2170475